Multibarrel tube-confined concrete column and steel beam connection joint and manufacturing method thereof

Abstract

The invention discloses a multibarrel tube-confined concrete column and steel beam connection joint and a manufacturing method thereof. The multibarrel tube-confined concrete column and steel beam connection joint comprises an inner steel tube, an outer steel tube, anchoring plates and steel beams, wherein the outer steel tube sleeves the inner steel tube, and steel beams are connected to the sidewall of the outer steel tube; the multiple anchoring plates are evenly arranged on the side wall of the inner steel tube, clamping grooves matched with the anchoring plates are formed in the outer steel tube, and the anchoring plates penetrate through the clamping grooves and extend out of the outer steel tube; and the extending ends of the anchoring plates and web plates of the steel beams are connected with first fixing mechanisms. The multibarrel tube-confined concrete column and steel beam connection joint is in an upper-welding and lower-bolting form, upper flanges of the steel beams andupper outer ring plates are connected through welding seams, and through reinforced concrete floor slabs, the connection welding beams can be effectively protected from being torn and damaged; and lower flanges of the steel beams and lower outer ring plates are connected through bolts, and thus the deformation capability of the composite joint under the effect of the earthquake load is enhanced.The manufacturing method of the multibarrel tube-confined concrete column and steel beam connection joint is simple and easy to operate and implement.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a connection node between a composite steel pipe concrete column and a steel beam and a manufacturing method thereof. Background technique [0002] The composite steel tube concrete structure is a new type of structure developed on the basis of the steel tube concrete structure, which is formed by pouring concrete into two or more layers of steel tubes. According to whether the innermost steel pipe is filled with concrete, it can be divided into two types: solid composite and hollow composite steel pipe concrete. According to the different cross-sectional forms of the inner and outer steel pipes, it can be divided into composite steel pipe concrete structures such as inner circle and outer circle, inner circle and outer square, such as figure 1 Figure (a) is a cross-sectional view of an inner-circle-external-circle compound concrete-filled steel pipe column, and figure ...

AI Technical Summary

Problems solved by technology

The welded joints of concrete filled steel tube columns and steel beams are prone to brittle failure due to tearing of the weld seam of the lower flange of the steel beam under the action of earthquake loads, and the seismic performance of the combined joints cannot be effectively exerted

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